Satellite Tracks 2,472-mile Green Turtle Ocean Passage

Swansea Universtiy in the UK reports that its
researchers, working with colleagues in Australia and the
Seychelles, have announced the longest recorded migration for the
green sea turtle, an endangered species. One of eight turtles
which were tracked by satellite was found to have travelled 3979
km (2,472 m), from the Chagos Islands in the Indian Ocean, to the
coast of Somalia in east Africa.

The University adds that the research was reported in the latest
issue of 'Conservation Biology'. The team were investigating the
effectiveness of marine protected areas, which have been set up
by governments around the world over the last decade as part of
efforts to reduce declines in ocean biodiversity.

The green turtle breeds on the Chagos Islands, in the Chagos
Archipelago protected area, which covers 640,000 km around the
isolated islands, which lie in the middle of the Indian Ocean.
When it was set-up in 2010 it was the world's largest marine
protected area and it supports some of the most pristine coral
reefs.

The research team attached small tags to the shells of eight
nesting turtles, allowing them to be followed by satellite for
over a year. They found:??

7 of the 8 tracked individuals migrated to distant foraging
grounds which lay outside the protected area boundary.

One turtle had travelled 3979 km to the coast of Somalia, the
longest migration ever recorded and published.

Only 1 of the 8 tracked turtles remained inside the protected
area after the breeding season had finished.

The research team is from Swansea University, Deakin University
(Australia) and the Seychelles.

Professor Graeme Hays, from the College of Science at Swansea
University, said: ??"The message from this research is that
networks of small protected areas need to be developed alongside
larger ones, so species which migrate over long distances can
stay in safe zones for as much time as possible."??
Source: Swansea University College of Science